Error loading webview

When I start a codespace for Mudlet, I get the following error pop up:

Error loading webview: Could not register service workers: NotSupportedError: Failed to register a ServiceWorker for scope (‘https://extensioneditor.vscode-webview-test.com/403a6895f401c397933ec5c4f7d89432a33509b6/’) with script (‘https://extensioneditor.vscode-webview-test.com/403a6895f401c397933ec5c4f7d89432a33509b6/service-worker.js’): The user denied permission to use Service Worker…

Not entirely certain what triggers it yet or what the effect is.